NMK939 Fifty-Eight SKX007/SPRD Watch Case Bundle: Steel Finish


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Once considered a "Poor Man's Rolex", Tudor has really come into its own in recent times. This NMK939 Fifty-Eight SKX007/SPRD Watch Case Bundle in Steel Finish pays homage to the eternal crowd favourites BB58, a vintage styled diver complete with details such as an ultra slim low profile bezel, top hat sapphire crystal and option for an Oyster Rivet bracelet. The best part is, everything is pre-assembled, making this the perfect plug-and-play dive case. Check out our Fifty-Eight collection for more part ideas!

Design Update: We've heard your feedback and our NMK939 bracelet now comes with a female solid end link!

NMK939 Fifty-Eight SKX007/SPRD Watch Case Bundle: Steel Finish

Case Specifications:
Case Diameter: 39mm
Lug to Lug: 47.5mm
Thickness: 9.5mm (Case only)
Total thickness: 13.5mm (Case with crystal and slim caseback)
Lug Width: 20mm

What's Included?
- Top Hat Sapphire Crystal (Clear AR)
- Ultra-Slim Line Coin Edge Bezel for SKX007 Sloped Bezel Inserts
- Integrated Brushed Chapter Ring (Rehaut)
- Brushed Oyster Rivet Bracelet (Option) - Tapers from 20mm to 16mm
- Matching Sterile Crown

- Caseback Gasket
- Pair of 20mm Springbars


Parts Compatibility:
Fits all SKX007 Sloped Bezel Inserts, SKX007 Crowns, and SKX casebacks and is compatible with all our existing dials and hands. 

Movement Compatibility:
Compatible with NH35/36/70/71 etc and NH34 movements for GMT builds.

Free International Delivery
  • Your order of S$50 (or equivalent in your local currency) or more gets free standard shipping, and orders above S$200 is eligible for free express shipping! Shipping costs will be automatically deducted at checkout.

Customer Reviews

Based on 48 reviews
William Y. (Deeside, GB)
BB58 Case and Strap Bundle

Lovely item and superb quality for my homage build. There was a minor quality issue, however, this was quickly and painlessly resolved by the Namoki team.


Great case!!! Bezel is a little tight at first but overall that's a good thing,fits 28.5mm dials perfectly

Desportsman (Boardman, US)
Awesome product

I just received my case and bracelet. I must say I was very impressed by the quality of the product. Weight of both the case and bracelet feel like quality. I only wish all my part were in so I could have built this watch today. Alas, the wait will be worth it once it’s done.

Eadric W. (Singapore, SG)

Second time ordering from namoki and standard is always amazing

ROBIN V. (Toronto, CA)
1st build beauty

Turned out better then expected. Love everything about this outfit....keep it it up! Lume love is always fun, you should all have a go.